diff --git a/templates/web/prod/index.html.twig b/templates/web/prod/index.html.twig
index c7de406d9b..fdd7f139b4 100644
--- a/templates/web/prod/index.html.twig
+++ b/templates/web/prod/index.html.twig
@@ -423,14 +423,14 @@
                                                             <td style="padding-right: 5px;">
                                                                 <div class="input-prepend">
                                                                     <span class="add-on"><i class="icon-calendar"></i></span>
-                                                                    <input onchange="checkFilters(true);" class="datepicker input-small" type="text" name="date_min" style="margin: 0;position: relative; z-index: 10001;" />
+                                                                    <input onchange="checkFilters(true);" class="datepicker input-small" type="text" name="date_min" placeholder="YYYY/MM/DD" style="margin: 0;position: relative; z-index: 10001;" />
                                                                 </div>
                                                             </td>
                                                             <td>{% trans 'phraseanet::time:: a' %}</td>
                                                             <td>
                                                                 <div class="input-prepend">
                                                                     <span class="add-on"><i class="icon-calendar"></i></span>
-                                                                    <input onchange="checkFilters(true);" class="datepicker input-small" type="text" name="date_max" style="margin: 0;position: relative; z-index: 10001;" />
+                                                                    <input onchange="checkFilters(true);" class="datepicker input-small" type="text" name="date_max" placeholder="YYYY/MM/DD" style="margin: 0;position: relative; z-index: 10001;" />
                                                                 </div>
                                                             </td>
                                                         </tr>
diff --git a/www/skins/prod/000000/prodcolor.css b/www/skins/prod/000000/prodcolor.css
index 7dd36cc001..b705ca38a2 100644
--- a/www/skins/prod/000000/prodcolor.css
+++ b/www/skins/prod/000000/prodcolor.css
@@ -1784,6 +1784,11 @@ H4 {
     margin: 0 0 0 10px;
 }
 
+#searchForm input.input-small.datepicker::-webkit-input-placeholder { font-size:12px; }
+#searchForm input.input-small.datepicker::-moz-placeholder { font-size:12px; } /* firefox 19+ */
+#searchForm input.input-small.datepicker:-ms-input-placeholder { font-size:12px; } /* ie */
+#searchForm input.input-small.datepicker:-moz-placeholder { font-size:12px; }
+
 #adv_search .sbasglob hr,
 .adv_options .sbasglob hr,
 .adv_options #sbasfiltercont hr {
diff --git a/www/skins/prod/959595/prodcolor.css b/www/skins/prod/959595/prodcolor.css
index 9042ab4d5e..f6b069a351 100644
--- a/www/skins/prod/959595/prodcolor.css
+++ b/www/skins/prod/959595/prodcolor.css
@@ -1814,6 +1814,11 @@ H4 {
     margin: 0 0 0 10px;
 }
 
+#searchForm input.input-small.datepicker::-webkit-input-placeholder { font-size:12px; }
+#searchForm input.input-small.datepicker::-moz-placeholder { font-size:12px; } /* firefox 19+ */
+#searchForm input.input-small.datepicker:-ms-input-placeholder { font-size:12px; } /* ie */
+#searchForm input.input-small.datepicker:-moz-placeholder { font-size:12px; }
+
 #adv_search .sbasglob hr,
 .adv_options .sbasglob hr,
 .adv_options #sbasfiltercont hr {